Division of Air Quality

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Controlling Smaller Sources of Air Pollution in Delaware

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Smaller sources of air pollution are referred to by the term "Area Sources". Unlike large single sources of pollution, like an industrial smokestack, this term is used to describe sources that may emit pollution from an area in which a business or facility may be operating. Although these individual air pollution sources may not emit a large amount of pollution, when taken in aggregate as an industry, these pollution emitting activities can accumulate to large amounts of pollution impacting Delaware's air quality. The amount of pollution which may be regulated begins at 0.2 Ibs/day and is limited to < 10-25 tons/year before being considered as a Title V (major) source.